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Solubilities of iron, aluminum, magnesium and nickel in sulfuric acid media between 230 degrees and 270 degrees C.

机译：铁，铝，镁和镍在230摄氏度至270摄氏度的硫酸介质中的溶解度

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Nickeliferous laterite pressure leachates are multicomponent metal sulfate solutions containing excess free H2SO4 in amounts dependent on the ore and consequently on the solution composition. These solutions are encountered in the Pressure Acid Leach Process for nickel and cobalt recovery from lateritic ore deposits. Typically the metals which have the greatest influence on the leach solution acidity are iron, aluminum, and magnesium. These also have a significant impact on scale formation on the internal surfaces of the autoclave. Solubility data have been extensively used to identify the chemistry and thermodynamics of aqueous solutions. However, very limited data exist for metal solubilities in sulfuric acid media at the temperatures of relevance to laterite pressure leach solutions. In this work, the solubilities of iron, aluminum, magnesium and nickel in 10--70 g/L free sulfuric acid in the temperature range of 230° to 270°C were measured. With the aid of the OLI software, new thermodynamic data were estimated that permit the calculation of the activity of hydrogen ions.

机译：含镍的红土加压浸出液是多组分金属硫酸盐溶液，其中含有过量的游离H2SO4，其含量取决于矿石，因此取决于溶液的组成。在用于从红土矿床中回收镍和钴的加压酸浸工艺中会遇到这些解决方案。通常，对浸出溶液酸度影响最大的金属是铁，铝和镁。这些也对高压釜内表面的水垢形成有重大影响。溶解度数据已广泛用于识别水溶液的化学性质和热力学。但是，在与红土压力浸提溶液有关的温度下，金属在硫酸介质中的溶解度的数据非常有限。在这项工作中，在230°C至270°C的温度范围内测量了铁，铝，镁和镍在10--70 g / L的游离硫酸中的溶解度。借助OLI软件，估计了新的热力学数据，可以计算氢离子的活度。

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作者
Zhu, Xuetang.;
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作者单位

University of Toronto (Canada).;

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授予单位 University of Toronto (Canada).;
学科 Engineering Chemical.
学位 M.A.Sc.
年度 2003
页码 86 p.
总页数 86
原文格式 PDF
正文语种 eng
中图分类化工过程（物理过程及物理化学过程）;
关键词
入库时间 2022-08-17 11:45:13

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1. Solubility of ammonium aluminum sulfate dodecahydrate in the aluminum sulfate plus ammonium sulfate plus sulfuric acid plus water system at (25, 30, 40, and 50) degrees C [J] . Hostomska W, Hostomsky J Journal of Chemical and Engineering Data: the ACS Journal for Data . 2006,第1期

机译：十二水合硫酸铝铝在（25、30、40和50）摄氏度下在硫酸铝+硫酸铵+硫酸+水体系中的溶解度
2. Solubility of gold in oxidized, sulfur-bearing fluids at 500-850 degrees C and 200-230 MPa: A synthetic fluid inclusion study [J] . Guo Haihao, Audetat Andreas, Dolejs David Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society . 2018,第期

机译：金在500-850℃和200-230MPa的氧化，含硫流体中的溶解度：合成液体包裹性研究
3. Austenitic Nickel- and Manganese-Free Fe-15Cr-1Mo-0.4N-0.3C Steel: Tensile Behavior and Deformation-Induced Processes between 298 K and 503 K (25 A degrees C and 230 A degrees C) [J] . Mola Javad, Ullrich Christiane, Kuang Buxiao, Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science . 2017,第3期

机译：奥氏体镍和无锰Fe-15cr-1MO-0.4N-0.3C钢：拉伸行为和变形诱导的工艺在298k和503k（25℃和230℃）之间
4. The effect of temperature and leaching time of sulfuric acid on increasing nickel and iron content from ferronickel slag waste after alkaline fusion using sodium carbonate [C] . Prinanda Doni Santoso, Arryan Jibril R., Agus Budi Prasetyo, International Tropical Renewable Energy Conference . 2020

机译：碳酸钠碱性融合后硫酸温度和浸出时间对碳酸氢盐渣中镍渣中镍和铁含量的影响
5. Hematite solubility in sulfuric acid from 130-170 C and 230-270 C. [D] . Reid, Michael. 2005

机译：赤铁矿在130-170 C和230-270 C的硫酸中的溶解度。
6. A comparison of affinity constants for muscarine-sensitive acetylcholine receptors in guinea-pig atrial pacemaker cells at 29 degrees C and in ileum at 29 degrees C and 37 degrees C. [O] . R B Barlow, K J Berry, P A Glenton, 1976

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7. The Acidic Dissociation Constants of Glucose, Mannitol and Sorbitol, as Measured by Means of the Hydrogen Electrode and the Glass Electrode at 0 degrees and 18 degrees C. [O] . Jørn Thamsen, E. Wang Lund, Å. Åkerström, 1952

机译：葡萄糖，甘露醇和山梨糖醇的酸性解离常数，通过氢电极和玻璃电极在0度和18℃下测量。

Solubilities of iron, aluminum, magnesium and nickel in sulfuric acid media between 230 degrees and 270 degrees C.

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